Comparison of active and passive underwater detection (DSM)
Introduction to Active Sonar Detection. Basic Notions

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Comparison of active and passive underwater detection (DSM)
Introduction to Active Sonar Detection. Basic Notions

Author : Denis PILLON

Publication date: December 10, 2024 | Lire en français

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1. Comparison of active and passive underwater detection (DSM)

1.1 Active non-acoustic detection (DNA)

Let's start by describing a first difference between active and passive underwater detection (DSM), that of non-acoustic detection (DNA). In [RAD 6 712], we presented the many passive means of DNA, whereas in the active domain, there is only one, and of very limited use: the laser.

By active DNA, we mean the detection of a target's reflection of non-acoustic energy emitted in its direction. As far as electromagnetic...

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